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2 years ago

PLZZZZZZ HEEEEEEEEELLLLLPPPPP (will mark brainliest for correct answers)

Mathematics

1 answer:

alexdok [17]2 years ago

6 0

Answer:

y=4

Step-by-step explanation:

3(9) +4y= 43

27+4y=43

4y=16

y=4

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Which equation can be used to solve the matrix equation [1/2 -1/4 2 3/4] [x y] = [2 -4 1 6]

Musya8 [376]

Answer:

Use a matrix equation to solve the system of linear equations: -2x + 4y= 2, -3x+7y=7 *

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3 years ago

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PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!

Molodets [167]

Week 1: $100
Week 2: $102
Week 3: $104.04
Week 4: $106.1208
Week 5: $108.243216
Week 6: $110.40808032
Week 7: $112.6162419264
Week 8: $114.868566764928
Total: $858.296905011328

(A=100[((1+0.02)^(8)-1)(/0.2)=858.29

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3 years ago

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Nimfa-mama [501]

Answer:

Term and Coefficcent

Step-by-step explanation:

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3 years ago

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Find the sum of 2y²+3yz-y²-yz-z²+6zy-3y² please help STEP explanation

larisa86 [58]

Answer:

See picture attached

Step-by-step explanation:

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2 years ago

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Lydia graphed ΔXYZ at the coordinates X (0, −4), Y (2, −3), and Z (2, −6). She thinks ΔXYZ is a right triangle. Is Lydia's asser

katrin [286]

Answer:

Option (4)

Step-by-step explanation:

Vertices of the triangle are X(0, -4), Y(2, -3) and Z(2, -6).

Slope of XY ( $m_{1}$ ) = $\frac{y-y'}{x-x'}$

= $\frac{-3+4}{2-0}$

( $m_{1}$ ) = $\frac{1}{2}$

Similarly, slope of XZ ( $m_{2}$ ) = $\frac{-6+4}{2-0}$

( $m_{2}$ ) = (-1)

$m_{1}\times m_{2}=-\frac{1}{2}$

Which should be (-1) if XY and XZ are perpendicular to each other.

Now we can say that XY and XZ are not perpendicular.

Therefore, Lydia's assertion that ΔXYZ is a right triangle is not correct.

Option (4) will be the answer.

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2 years ago